Mervyn King will be able to see for himself the devastation wrought by the natural disaster in Japan when he gives a speech in Tokyo today* stressing the need to rebalance the global economy and to head off protectionist pressures.

Like the rest of us, the governor of the Bank of England could be forgiven for thinking that the gods continue to punish us mortals for the greed and stupidity of the bubble years.

The first obstacle thrown in the way of recovery from the Great Recession was the ruinous cost of the crisis to sovereign states. Then, violent political unrest rippled across the world's most significant oil-producing region, sending the cost of crude rocketing. Now, Japan has been laid low by one of the biggest earthquakes of the past 100 years at a time when its public finances are in a parlous state.

In a sense, the obstacle-strewn road to redemption should come as no surprise. This was no ordinary crisis and it is proving to be no ordinary recovery. The debts that caused the global system to self-destruct back in the summer of 2007 have not gone away, they have merely been passed on to the public sector. This was always a solvency crisis, because it was clear four years ago that many banks were bust and would have gone under without the aid of governments. It is still a solvency crisis, because some countries – Greece, Ireland and soon perhaps Portugal – are struggling with the enormous cost of paying off their debts. But it is not just the small fry who are financially impaired. Japan already has a debt-to-GDP ratio of getting on for 200%, while the US national debt is now in excess of $13tn (£8tn), up from $1tn 30 years ago. This, of course, is before anything like the full impact of the ageing of the baby boomer generation has been felt.

Here, then, are some predictions.

Contrary to the knee-jerk reaction in the oil market on Friday, the earthquake and tsunami in Japan will be positive for growth, at least given the somewhat bizarre way statisticians calculate gross domestic product. There will be a massive reconstruction effort in Japan, which will be funded by a mixture of quantitative and fiscal easing. The rest of Asia will continue to expand briskly, leading to higher demand for oil. Crude prices will continue to rise, with Brent hitting $130 a barrel in the spring if speculation about turmoil spreading from Libya to Saudi Arabia continues.

City analysts who travel to Asia and Latin America return with tales of how the emerging world is booming. It is certainly true that the big developing economies have been crucial to the recovery of the global economy since the spring of 2009.

But the warning signs, flashing amber a few months ago, are now flashing red. Commodity prices, especially oil, were on a sharp upward trend before the unrest began in north Africa. Higher oil prices mean higher inflation, which in the four previous oil shocks has tended to mean higher interest rates. The European Central Bank will be the first to move, having signalled that it feels the time is right to start unwinding the ultra-expansionary policy stance of the past two years. In the UK, there will be intense pressure on the Bank of England to follow suit, not least because the ECB's action will result in a weaker pound, making imported goods more expensive.

Dearer borrowing will be a double whammy for the weak countries on the fringes of the eurozone. It will slow their growth and make the cost of paying their ruinous debts more expensive. Europe provided itself with some additional firepower to tackle a sovereign debt crisis late last week, but this will deliver only short-term relief from a problem that will eventually ensnare Spain and Belgium as well as Greece, Ireland and Portugal.

The position of these developed countries is little different from that of poor countries in the 1990s: they are burdened with excessively high debts. Yet there is no Jubilee 2000 for Greece, and nor is there a bankruptcy mechanism for sovereign states. It is infra dig to suggest that bankers and bondholders should "take a haircut" for their duff decisions, and since they have declined, ordinary taxpayers will have to do so.

The fundamental problem for countries such as Greece, Ireland and Portugal is that they need growth to pay off their enormous debts, yet are unable to do so because of the deflationary policies inflicted on them by the European Union and the IMF. The widening of bond spreads suggests that something is going to give sooner or later. This can either be in an orderly manner if policymakers get their act together or in a chaotic fashion if there are attempts to get through the crisis with a mixture of bluster and confusion.

The debt crisis, tighter borrowing conditions and the squeeze on incomes and profits caused by higher energy costs will mean that global activity will start to cool over the coming months. Indeed, we could be quite close to the point where the main cause for concern ceases to be inflation and becomes growth. Interest rates will rise but not by nearly as much as the markets expect.

In the UK, inflation will hit 5%, intensifying the policy debate at the Bank of England. If the Bank does act, a combination of tighter monetary policy and fiscal austerity will push the economy back into recession. Watch out for the second quarter of 2011: it is not going to be pleasant.

Elsewhere, a deep and long recession will be followed by an unusually weak and shallow upturn, particularly given the size of the stimulus provided by central banks and finance ministries. The realisation that there will be no easy return to pre-2007 business as usual will trigger a wave of bankruptcies among firms that have been kept on life support in expectation of better times. Banks will have to own up to some of their hidden losses, resulting in a second phase of the financial crisis. This will be a bitter-sweet outcome for people like King, who have been warning that there will be no permanent solution to the crisis without addressing the global imbalances and to rein in the activities of big finance. Who knows, if things get really bad, his warnings may be acted upon?

* The text of the speech was released ahead of Mervyn King's visit, which was cancelled in the light of the earthquake.